sons

Killer whales are one of the three known animals that experience menopause, with females ceasing reproduction in their 30s or 40s and living beyond that into their 90s. Some have said that evolution doesn't select for longevity because it only cases about you living long enough to reproduce. Nonsense. In species with complex social structures like ours and like the killer whales, every individual matters and the elders can play important social roles.